<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>公众号关注：前端Hardy</title>
    <style>
        html,
        body {
            width: 100%;
            height: 100%;
            background: #FF7777;
            -webkit-font-smoothing: antialiased;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        h1 {
            height: 100px;
        }

        h1 span {
            position: relative;
            top: 20px;
            display: inline-block;
            animation: bounce .3s ease infinite alternate;
            font-family: none;
            font-size: 80px;
            color: #FFF;
            text-shadow: 0 1px 0#CCC,
                0 2px 0#CCC,
                0 3px 0#CCC,
                0 4px 0#CCC,
                0 5px 0#CCC,
                0 6px 0 transparent,
                0 7px 0 transparent,
                0 8px 0 transparent,
                0 9px 0 transparent,
                0 10px 10px rgba(0, 0, 0, .4);
        }

        h1 span:nth-child(2) {
            animation-delay: .1s;
        }

        h1 span:nth-child(3) {
            animation-delay: .2s;
        }

        h1 span:nth-child(4) {
            animation-delay: .3s;
        }

        h1 span:nth-child(5) {
            animation-delay: .4s;
        }

        h1 span:nth-child(6) {
            animation-delay: .5s;
        }

        h1 span:nth-child(7) {
            animation-delay: .6s;
        }

        h1 span:nth-child(8) {
            animation-delay: .7s;
        }

        @keyframes bounce {
            100% {
                top: -20px;
                text-shadow: 0 1px 0#CCC,
                    0 2px 0#CCC,
                    0 3px 0#CCC,
                    0 4px 0#CCC,
                    0 5px 0#CCC,
                    0 6px 0#CCC,
                    0 7px 0#CCC,
                    0 8px 0#CCC,
                    0 9px 0#CCC,
                    0 50px 25px rgba(0, 0, 0, .2);
            }
        }
    </style>
</head>

<body>
    <h1>
        <span>I</span>
        <span>L</span>
        <span>O</span>
        <span>V</span>
        <span>E</span>
        <span>Y</span>
        <span>O</span>
        <span>U</span>
    </h1>
</body>

</html>